Conduit electric trolley



(No Model.)

M. WHELESS.

GONDUIT ELECTRIC TROLLEY.

No. l168,166. /p/gggrg ggeb. 2, 1892.

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UNiTnD STATES PATENT OFFICE.-

MALONE XVHELESS, OF NASHVILLE, TENNESSEE.

CONDUIT ELECTRIC TROLLEY.

SPECIFICATION forming part of Letters Patent No. 468,166, dated February 2, 1892.

Application filed December 1, 1891.

.To a/ZZ whom it may concern:

Be it known that I, MALONE WHnLnss, a citizen of the United States, residing at Nash ville, in the county of Davidson and State of Tennessee, have invented certain new and useful Improvements in Trolleys for Electric Railways; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make .and

use the same, reference being had to the ac-.

colnpanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to an improvement in trolleys for electrical railways; and it consists in a trolley-carriage having the construction hereinafter set forth.

Figure l of the drawings represents a top vieur of the trolley in position, the wires being shown diagramatically and not in the position which they will occupy. Fig. 2 represents a side view of the trolley, the dotted line showing the correct position of the wires. Fig. 3 represents an end View of the trolley and a cross-section of a conduit, showing the trolley in position.

ln the annexed drawings, the letter A indicates the bottom of the car, from which there depend the chains a a, to which by eyes d is secured the standard h of the trolley-carriage B. This standard b is secured to a longitudinal strip b', which in turn is secured to transverse strips b2 h3. These strips are secured to side bars c c', being at one end insulated from one of these side bars, as shown at h4. These side bars c c have at their ends journals, on which are secured the wheels or rollers C C. Secured to the under side of the longitudinal strip o are the inner ends d of arms D, which are connected together by the longitudinal spiral spring E. To the ends of these arms D D are journals carrying the wheels or rollers F. The standard B is provided with several vertical passages f f f 2. From the rollers c and from the rollers c' the wires G G respectively run and unite together in pairs, passing through two of the holes f f2 in the standard. Wires l-l run from the rollers F and uniting together pass through the other Serial No. 413,725. (No model.)

hole f and through a hole a2 in the bottom of the car. The wires G and G run to a switch, by which they may be connected together. To the front of the standard l) is made a lug 7c, to which is secured a stem K, having at its end an elongated eye or slot 7e. The rod L, at its lower end Z, passes through such slot 7s. The upper end Z of this rod L passes through the bottom of the car and is held by a catch m, which catches around the head or upper end Z of the rod L. This rod L assists in holding the trolley to the car and steadies the trolley.

The various strips of which the trolley-carriage is made are more or less elastic, so as to allow freedom of motion.

In Figs. 2 and 3 this trolley is shown as applied to an underground system of electric railway. In the conduit N there is secured a bare working conductor O by the insulated bearing o. There are also secured in this conduit the bare 1ine-wires P P by insulated bearings p p. These several wires are to be arranged in sections, those of each wire being insulated from one another, the points of insulation of the different sections being coincident.

In the arrangement shown in Fig. 3 the linewire P is in substantially the same vertical plane with the working conductor O. In using the trolley B with such an arrangement of wires the arms D are to be so made that the wheels F will come in the same vertical plane with the wheels C and under them.

In use the wheels F F bear upon the working conductor O, the wheels C upon the linewire P, and the wheels C upon the line-wire P. When the switch of the wires G G is closed, there is a continuity from the wire P through the wheels C, wires G G', and wheels C to the wire P. It', therefore, there be any source of electrical energy connected to the wires P P', it will be at once put in action by the closing of this switch, the circuit being thereby completed. Should there be any such circuit containing the switch which controls the supply of electrical energy to the working conductor O, as soon as the switch of the line G G is closed and that circuit completed this switch will be closed and the current will IDO flowY into the Working conductor O through the Wheels F and Wire H to the motor ou the Having described my invention, what I claim is- 1. The combination of three lines of Wire, each line being in sections insulated from one another and two of such lines being,r parts of the same circuit, with a. trolley having three pairs of Wheels, one pair for each line of Wire, and the two pairs which are for the lines of 

